Re: [malware-list] [RFC 0/5] [TALPA] Intro to a linuxinterfaceforon access scanning

Alan Cox
2008-08-11T22:02:38Z

On Mon, 11 Aug 2008 21:53:23 +0000 (UTC)
daw@cs.berkeley.edu (David Wagner) wrote:

> David Collier-Brown writes:
> >Arjan van de Ven wrote:
> >> we do still appreciate your description, since I don't think there's a
> >> clear "here's what we really try to protect against" statement yet.
> >
> > Perhaps I could try: the AV folks are trying to prevent the
> >execution of either modified normal binaries/files or
> >specifically exploit binaries/files, by machines for which the
> >files are executable or interpretable.
>
> 1. We already know how to prevent/detect modifications to
> normal binaries. See Tripwire etc. As far as I know, no new
> kernel technology is needed.

Tripwire is incredibly ineffecient and ineffectual because we don't have
a scalable 'file was modified' notifier

Alan